Move most of Util into library
Moxie Marlinspike
12 years ago
parent
21eee19380
commit
a200d29514
@ -1,6 +1,4 @@
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package org.thoughtcrime.securesms.util;
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import java.io.IOException;
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package org.whispersystems.textsecure.util;
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/**
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* <p>Encodes and decodes to and from Base64 notation.</p>
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@ -0,0 +1,58 @@
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package org.whispersystems.textsecure.util;
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import android.app.AlertDialog;
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import android.content.Context;
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import android.widget.EditText;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.security.NoSuchAlgorithmException;
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import java.security.SecureRandom;
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public class Util {
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public static boolean isEmpty(String value) {
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return value == null || value.trim().length() == 0;
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}
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public static boolean isEmpty(EditText value) {
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return value == null || value.getText() == null || isEmpty(value.getText().toString());
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}
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public static boolean isEmpty(CharSequence value) {
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return value == null || value.length() == 0;
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}
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public static void showAlertDialog(Context context, String title, String message) {
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AlertDialog.Builder dialog = new AlertDialog.Builder(context);
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dialog.setTitle(title);
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dialog.setMessage(message);
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dialog.setIcon(android.R.drawable.ic_dialog_alert);
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dialog.setPositiveButton(android.R.string.ok, null);
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dialog.show();
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}
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public static String getSecret(int size) {
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try {
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byte[] secret = new byte[size];
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SecureRandom.getInstance("SHA1PRNG").nextBytes(secret);
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return Base64.encodeBytes(secret);
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} catch (NoSuchAlgorithmException nsae) {
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throw new AssertionError(nsae);
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}
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}
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public static String readFully(InputStream in) throws IOException {
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ByteArrayOutputStream bout = new ByteArrayOutputStream();
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byte[] buffer = new byte[4096];
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int read;
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while ((read = in.read(buffer)) != -1) {
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bout.write(buffer, 0, read);
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}
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in.close();
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return new String(bout.toByteArray());
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}
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}
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